Heating system.



m UM MM APPLICATION FILED MAY 15, 1900.

Patented Sept. 29, 190s;

v. I I IYNVENTOR Q W' ATTO NEYJ.

A. G. PAUL.

v HEATING SYSTEM.

APPLICATION FILED MAY 15, 1900.

899.839, Patented Sept. 29, 1908.

2 SHEETS-SHEET 2.

INVENTOR W A110 5Y6.

PATENT OFFICE.-

ANDREW G. PAUL, OF BOSTON, MASSACHUSETTS.

HEATING sYs'rnM.

Specification of Letters Patent.

Patented Sept. 29, 1908.

- Application filed May 15, 1900. Serial No. 16,815.

To all-whom it may concern: Be it known that I, ANDREW G. PAUL, citizen of the United States, residing in Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Heating Systems, of which the following is a full, clear, and exact specification, reference being had to the ac companying drawings, which form a part hereof.

This invention relates to a heating system wherein steam or other suitable heating agent is circulated for the purpose of conveying and imparting heat to the laces desired, and

it consists in an improve construction and arrangement of the parts of such a system.

One object of my invention is to control the heating of the room or. apartment and at the same time the ventilation thereoflby means of the pressure within the system or the heater. Another object of my 'invention'is to control both the amount of heating vehicle which is supplied to the system, and the amount of air which is supplied through an air duct tothe room or apartment beingheated by the pressure within the system or heater.

My invention is fully shown in the accompanying drawings, in which Figure 1 shows m invention embodied in a system in which-t e supply valve, and an air duct opening at the rear of the radiator, are controlled by the pressure within the radiator. Fig. 2 is a side view, partly in sec-' tion, of the system shown in Fig; 1. Fig. 3 shows my improved system applied to what is ordinarily termed an indirect heatin stack. Fig. 4 is a sectional view of the. diaphragm and connected parts. Fig. 5 is a sectional view of the valve 42.

Similar numbers denote similar parts in the different figures.

Referring to Figs. 1 and 2, 1 is a radiator or heater of any suitable construction; 2 is a supply pipe; 3 is a supply valve; 4 is a discharge pipe; 5 is a check valve on the discharge pipe; 6 is a tank for the water of condensation; 7 is a relief pipe .from' said tank.

provided with a check valve 8 or any other suitable form of valve.

9 is a cock for drawing ofi the water of condensation.

10 is a pipe through which the water of condensation can be pumped to the boiler or to any other place desired.

11 is an air duct opening behind the radiator as shown, and provided with the valve or damper 12. y

13 is a diaphragm suitably held or supported in a casing 14. A

' 15 is a fluid pressure chamber underneath the diaphragm connected by means of the pipe 16 with the radiator.

17 is a solenoid valve on the pipe 16 controlled in any suitable manner by the thermostat 18, which is adapted to be placed upon the Wall of the room or apartment to be heated or in any other suitable position. As shown, the thermostat 18 is connected with the valve 17 by means of the electric circuit 19, including a battery or generator 20. The fluid pressure chamber 15 is provided with any suitable form of vent such as an ordinary pin-hole opening.

21 is an arm fastened in any suitable way 22,which. is fulcrumed at 23. the lever 22 is connected by means of the rod 24 with the supply valve 3. The other end of thelever is connected with the damper 12 by means ofthe rod 25, the bell-crank lever 26, and the link 27.

' 28 is an air pipe provided with an exhauster 29 and with an ordinary automatic air valve 30.

31 is an air pi e running from the exhauster tothe tan 6, provided with an au-' tomatic air valve 32 as shown.

33 is a screw supported in a post rising from the casing 14 of the diaphragm, and at its lower end carrying a loop 34, encircling thelever 22 as shown. By this means the lever 22 can be moved in either direction so as to open or close the supply valve and the valve 12, or limit, the extent oftheir opening.

The operation ofthis appara us is as follows. Assuming that the valve 17 is open, the system is startedeither by opening the supply valve and the air duct by means of thescrew 33 orby putting the exhauster 29 into operation. The air isdrawn out from to the diaphragm, and pivoted to the lever One arm of the radiatorthroughthe air pipe 28. The

sired point.

thereby. As soon as the pressure in the radiator rises above the desired or predetermined point, this pressure operates upon the diaphragm 13 and causes it to move the lever 22 and thereby to close the sup ly valve 3 and the valve 12 in the air duct, t us cutting oil the supply of heating vehicle to the radiator, and at the same time cutting ed the current of air through the duct 11. When the pressure falls below the desired or predetermined point, the diaphragm 13 is moved in the opposite direction, thereby again opening the supply valve and the air duct. A fresh quantity of heating vehicle is introduced into the radiator, and at the same time a current of air is heated and allowed to escape into the room. This operation continues untilthe room is sufliciently heated. The thermostat 18 being then expanded, closes the circuit 19and thereby closes the valve 17 in the pi e 16, thus shutting the radiator off from tie fluid pressure chamber 15. The pressures of the two sides of the diaphragm 13 are then equalized through the vent, as a result of which the supply valve and the valve or damper 12 are both closed and are kept closed so long as the temperature in the room remains at or above the de- Should the temperature of the room fall below this point, the valve 17 is again opened and the radiator, is brought into operation as already explained. The water of condensation passes out through the discharge pipe 4 into the tank 6. The air is removed from the radiator through the air pipe 28 by the exhauster 29.

it will be seen that the room is heated not only by the direct radiation of heat from the radiator, but also by the current of air pass ing into the room from the duct 11 which is heated as it passes by the radiator, and that in this way tne room is ventilated as well as heated.

In Fig. 3 the parts are the same as already described with the following dififerences. 35 is a heating stack placed in an air flue 36 which opens into the room or other place to be heated. The lever 22 is connected at one end with the supply valve as already ex plained, and at the other end by means of the rod 37 and link. 38 with the valve or damper-39, which is )laced in the air duct preferably between t e stack 35 and the outer end of the air duct. The pipe 16 connecting the fluid pressure chamber of the diaphragm with the stack is provided with an ordinary hand valve 40 in addition to the solenoid valve 1'7. The supply pipe is also provided with an ordinary shut oil valve 41. The discharge pipe from the stack is provided with a discharge valve 42. The construction of this valve 42 is shown in Fig. 5 in which 50 is the valve casing, 51 is discharge port at its lower end, 52 is a iston provided at its lower end with a va ve 53 eoaasa adapted to close the port 51, 54 is a passage for air or gas or vapor between the iston and the wa l of the casing, 55 is a flui pres- ;sure chamber above the piston, 56 is a pas sage in the casing connecting the lluid pressure chamber with the discharge pipe be yond the discharge port 51, 57 is a spring one end of which bears against the upper side of the piston and the other end of which bears against the lower surface of a screw 58 by means of which the tension of the spring can be adjusted, and 59 is a cap to protect the screw 58.

43 is an ordinary hand valve on the discharge pipe, 44 is an eXhauster connected with the discharge pipe, and 51:5 is a valve for cutting out the exhauster. The operation of this form of apparatus is substantially the same as that already explained. The system is started by putting the exhauster ll into operation, thereby drawing out the air from the stacl; 35 and reducing the pressure therein which causes the diaphragm 13 to open the supply valve 3 and at the same time the valve 39 in the air duct. When the pressure in the stack rises above the desired or predetermined point, it operates upon the diaphragm l3 and shuts both the supply valve and the air duct valve. Nhen the pressure in the stack falls below this desired or predetermined point, these valves are again opened. 'lhe water oi: condensuthm and the air are removed from the system through the discharge valve by the operation of the exhaust ll hen the thermostat is employed, the pipe 16 is closed as soonv the room reaches the desired temperature already explained. Some of n advantages of my invention system. can be run at are s iollew any predetei lGSSlll'G n the heater or radiator accoi to the worl; which is to he periornied. pressure is regulated and controlled accurately and antomatieally. l l hen the system. into operation a current of fresh air supplied to the room, thereby accomplishing two purposes, first, ventilating the room and also serving to heat the room as this air heated by the radiator in passing by the radiator. lhis prmluees a circulation of in the room, and thereby aids in the ventilation of the room. At the same time the air and water of eondensatimi are automatically and cl'l'iciently removed from the system. By employing the then mostat in the room or place to be heated, the heating system can be turned on or oil ac cording to the conditions prevailing in this room, and the amount of heat supplied. their to can thus properly and economically controlled.

W hat I claim as new and desire to' secure by Letters Patent, is:

l. Ehe combination with a heating systern, of a supply pipe, a supply valve and an lOO air duct, a valve in the air duct, a motor controlling both of said valves and connected .with the heater or radiator so as to be operpressure Within, substantially side of said motor, and a pipe connecting the fluid pressure chamber with the heater or radiator, substantially asset forth.

3. The combination with a heating system, of' a supply pipe, a supply valve, an

air duct, a va vein the air duct, a motor controlling both of said valves and connected with the heater or radiator so as to be operated by the pressure therein/a. discharge pipe, a discharge valve, a casing, a motor controlling said dischar 'e valve, the

: cas' being provided with a uid pressure cham or on one'side of said motor, and with a passage connecting the fluid pressure 4 chamber with the chamber on the other side of said motor, .a' pipe connecting said fluid pressure chamber with the'discharge pipe, and an exhauster connected with theexhaust ipe, substantially as set forth.

4. Tie combination of a heating system, a supply pipe, a supply valve, an air duct, a valve in the air duct, a motor controlling both of said valves, a casing provided with a fluid pressure chamber. on one side of said motor and a pipe connecting the fluid pres sure chamber with the heater or radiator, a discharge pipe, a discharge valve, a piston controlling said discharge valve, a casing provided with a fluid pressure chamber on one side of said piston, and with an air pas .sage connecting the fluid pressure chamber with the chamber on the other side of said piston, a pipe connecting said fluid pressure chamber with the discharge ipe, and an exhauster connected with the discharge pipe, substantially as set forth.

.5. The combination with a heating system of a supplypipe, a supply valve, an air duct, a valve in the air not, a motor controlling both of said valves, a casing provided with a fluid pressure chamber on one side of said motor,'and a pipe connecting the fluid pressure chamber. with the heater or radiator, and a thermostat controlling said passage, substantially as set forth.

- 6. The combination of a heating system,

one side of said motor, and with an air passage connecting the fluid pressure chamber with the chamber on the other side of said motor, a pipe connecting said fluidpressure chamber with the discharge ipe, and an exhauster connected with t e discharge pipe, substantially as set forth.

testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses. I

ANDREW G. PAUL.

'Witnesses 'THoMAs K. PETERS, NANNIE FINLEY. 

